Compressed gas motor for operation of a lavage system
a lavage system and compressed gas technology, applied in the direction of positive displacement liquid engines, enemata/irrigators, pumping pumps, etc., can solve the problems of large battery or rechargeable battery blocks, limited charge capacity, and need to be taken along, so as to reduce embolism and cardiopulmonary changes, prevent hemodynamic and blood gas changes, and improve cement penetration
Inactive Publication Date: 2018-05-08
HERAEUS MEDICAL
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Benefits of technology
This patent is about improving the performance of a compressed gas motor by using a vibration body that can repeatedly hit against the plunger to induce it to perform a vibration. The text also discusses the use of rubber-elastic sealing rings for sealing the space between the front region of the motor and the plunger. However, these rings have a friction that limits the pulse rates. As a result, a wiper lip is recommended as it has lower frictional resistance, allowing for higher pulse rates.
Problems solved by technology
However, a large battery block or rechargeable battery block, which only has a limited charge capacity due to its nature, always needs to be taken along.
For these reasons, the compressed gas motor is the most expensive component of common compressed air-driven lavage systems.
However, one disadvantage of all pumps with a membrane is that it is very difficult to manufacture a suitable membrane with a high restoring force that can follow the high pulse rates of a plunger vibrator and / or vibration body.
As a result, high pulse rates can be implemented only with great effort.
Moreover, said systems are sensitive due to the axial deformability of the membrane, since the vibration body can move too far axially into the direction of the membrane and thus might come to a standstill.
Said systems are not sufficiently robust.
Method used
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[0015]In the scope of the present invention, a compressed gas motor shall be understood to be a motor that can perform work by means of a pressure difference between a first gas (the compressed gas) and a second gas (for example of the surroundings) having a lower pressure. It is preferred in this context to use a compressed gas as working medium and to discharge it into the surroundings of the compressed gas motor. The flow of the compressed gas through the compressed gas motor makes the vibration body and thus the plunger perform a periodical motion.
[0016]Compressed gas motors according to the invention can be provided appropriately such that the restoring element exerts on the plunger a force acting in the direction of the vibration body, at least for part of the time during the operation of the compressed gas motor.
[0017]Preferably, the restoring element exerts a force in the direction of the vibration body while the plunger is in any position other than the starting position or...
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A compressed gas motor (1) comprising a vibration body (10) made to vibrate by a compressed gas being guided through the compressed gas motor (1), and a plunger (12) supported as in a bearing by a restoring element (14) in spring-like manner, the vibration body (10) and the plunger (12) being positioned and supported such that the vibration body (10) repeatedly hits against the plunger (12) during the vibration and displaces it against the restoring element (14), whereby the motion of the plunger (12) is utilized as the drive of the compressed gas motor (1).
Description
[0001]The invention relates to a compressed gas motor comprising a plunger and a restoring element. The invention also relates to a lavage system comprising a compressed gas motor of this type.[0002]Moreover, the invention relates to the use of a compressed gas motor of said type and to a method for generating a periodical motion by means of a compressed gas, and to a method for generating a spray puff by means of a method of said type.[0003]Accordingly, the object of the invention is a simplified compressed gas motor that can be manufactured, in part, from inexpensive plastic materials and is well-suited as a pumping drive of medical rinsing devices. Moreover, a pump for liquids that is driven by the compressed gas motor is described. Moreover, the invention proposes the use of the compressed gas motor to drive a pump for dispensing rinsing liquid for a medical rinsing device (i.e. for a lavage system). But the compressed gas motor can be used for other purposes just as well.BACKGR...
Claims
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IPC IPC(8): F04B9/12A61M3/02F04B7/02
CPCF04B9/12F04B7/02A61M3/0258A61M3/0254
Inventor VOGT, SEBASTIAN
Owner HERAEUS MEDICAL